All categories

3 years ago

(m+3n)8 plz help me now

Mathematics

1 answer:

Rainbow [258]3 years ago

5 0

Answer:

(8m+24n) is our final answer.

Step-by-step explanation:

Given:

(m+3n)8 ...

We have to simplify this.

Applying distributive property of multiplication:

Distributive property:

When a number is multiplied by a sum of two numbers then we will multiply 'the number' first with the number inside the parentheses then add it and again multiply 'the number' with the next number.

$a(b+c)=ab+ac$

So,

⇒ $(m+3n)8$

⇒ $m\times 8 + 3n\times 8$

⇒ $8m+24n$

Our final answer is (8m+24n).

You might be interested in

What does the expression I+ w + i + w represent

Zinaida [17]

For example:
L plus W
3 plus 6= 9
I plus W
4 plus 6= 10
total: 9+10= 19
(this is just an example)

7 0

3 years ago

Use Vieta's Theorem to solve the problems.

VladimirAG [237]

Answer:

The answer is -2, -17

Step-by-step explanation:

You write a system of equations

$x_{1} +x_{2}=-19\\x_{1}-x_{2}=15$

Then you solve:

-2, -17

4 0

3 years ago

There is a manhole cover with a radius of 1 foot. What is the manhole cover's diameter?

zhuklara [117]

Step-by-step explanation:

This seems like you just want to figure out the circumference of the manhole cover. The formula for the circumference of a circle is pi (3.14) multiplied by the diameter (d) of the circle so, circumference=πd. (π is the symbol for pi and approx. equals 3.14)

Circumference = πd

= 3.14(d)

= 3.14(3)

= 9.42 ft.

The length of the brass grip-strip will be 9.42 ft.

If the problem was stated in terms of the radius of the manhole cover then the formula would be circumference = 2πr which is the radius multiplied by 2 then multiplied by pi.

The radius of a circle is the distance from the center to the edge and the diameter is the distance from one edge of the circle to the other passing through the center of the circle.

Well, if the grip strip were of no width and could be straightened out to a line (which a piece of rubber cut in a circle couldn't be), then the length of the grip would correspond to the circumference of the manhole cover.

Circumference = 2*PI*radius = PI*diameter so your answer is 3*PI feet long.

6 0

2 years ago

Ok just answer this and im gonna mark as brainliest

suter [353]

Paperbacks and notebooks

3 0

3 years ago

Give that each figure shown below is a trapezoid. Find the missing values.

Lyrx [107]

Answer:

EF=22

C=70°

B=110°

Step-by-step explanation:

Trapezoids have to have a total of 360° and there are complementary angles.

6 0

3 years ago